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http://forums.pelicanparts.com/uploa...1749597296.jpg http://forums.pelicanparts.com/uploa...1749597296.jpg http://forums.pelicanparts.com/uploa...1749597296.jpg This is what a hole in the skin looks like after a needle punctures it, as observed under a scanning electron microscope. http://forums.pelicanparts.com/uploa...1749597296.jpg http://forums.pelicanparts.com/uploa...1749597296.jpg http://forums.pelicanparts.com/uploa...1749597296.jpg http://forums.pelicanparts.com/uploa...1749597296.jpg |
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Could be worse... https://static1.hotcarsimages.com/wo.../08/camaro.jpg |
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Oh, oh, oh! https://i.ytimg.com/vi/g3zbjHxVVxM/maxresdefault.jpg |
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http://forums.pelicanparts.com/uploa...1749646723.jpg http://forums.pelicanparts.com/uploa...1749646723.jpg http://forums.pelicanparts.com/uploa...1749646723.jpg Sirius, also known as the Dog Star, is the brightest star visible from Earth in the night sky. It belongs to the constellation Canis Major and lies approximately 8.6 light-years away from us, which is about 50.5 trillion miles—not 56 trillion, as sometimes approximated. Its brilliance is due to both its intrinsic luminosity and its relative closeness to Earth. Sirius is not a single star but a binary system consisting of two stars: Sirius A and Sirius B. Sirius A is a large, white, main-sequence star roughly twice the mass of the Sun and about 25 times as luminous. It’s the one we primarily see with the naked eye. Its companion, Sirius B, is a white dwarf—a small, incredibly dense stellar remnant roughly the size of Earth, though it once was a massive star in its own right. The Sirius system is relatively young by stellar standards, only about 200 to 300 million years old. Culturally, Sirius has held significant importance in civilizations across the world. The ancient Egyptians associated its heliacal rising with the flooding of the Nile, while the Greeks linked it to the "dog days" of summer. Its brilliance, reliability, and position in the sky have made it a key star for navigation and mythology for millennia.Sirius, also known as the Dog Star, is the brightest star visible from Earth in the night sky. It belongs to the constellation Canis Major and lies approximately 8.6 light-years away from us, which is about 50.5 trillion miles—not 56 trillion, as sometimes approximated. Its brilliance is due to both its intrinsic luminosity and its relative closeness to Earth. Sirius is not a single star but a binary system consisting of two stars: Sirius A and Sirius B. Sirius A is a large, white, main-sequence star roughly twice the mass of the Sun and about 25 times as luminous. It’s the one we primarily see with the naked eye. Its companion, Sirius B, is a white dwarf—a small, incredibly dense stellar remnant roughly the size of Earth, though it once was a massive star in its own right. http://forums.pelicanparts.com/uploa...1749646723.jpg Great photo from 124 years ago, boiler install crew at work, with their tools. http://forums.pelicanparts.com/uploa...1749646723.jpg http://forums.pelicanparts.com/uploa...1749646723.jpg http://forums.pelicanparts.com/uploa...1749646723.jpg Astatine is the rarest element you’ll never get to see! If you gathered every bit of astatine on Earth, it would weigh less than an ounce – about the same as two cookies. But you’ll never see it, let alone hold it. Astatine is so radioactive that any solid sample would vaporize instantly from its own heat. This elusive element, with the symbol At and atomic number 85, is the rarest naturally occurring element in Earth’s crust. It forms as a decay product of heavier elements, existing only in trace amounts before quickly vanishing. Its most stable isotope, astatine-210, has a half-life of just 8.1 hours, meaning it rapidly breaks down into other elements. Because it’s so scarce, its physical properties remain largely unknown. Scientists believe astatine likely resembles iodine, yet it also shows some metallic behavior. It may be a semiconductor or even a metal, but no one has ever seen a bulk sample to know for sure. Astatine exists on the edge of two worlds – part halogen, part metal, and completely elusive. One of the rarest and most mysterious elements, it exists just long enough to disappear. |
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http://forums.pelicanparts.com/uploa...1749658039.jpg "On 26 June 1974, the first installation of supermarket scanners entered service in a Marsh supermarket in Troy, Ohio. This Spectra Physics model A price scanner, is one of those first ten scanners. A package of Wrigley's chewing gum became the first purchase made with scanners that could read the new Uniform Product Code (UPC or barcode). Mounted within the unit a helium-neon laser projected a beam onto a rotating mirror and thence up through a glass plate on the top surface. The light reflected from the code label on the package and was detected by a photo-diode. A computerized cash register matched the signal from the photo-diode with information in a stored database to determine which product was being scanned." http://forums.pelicanparts.com/uploa...1749658039.jpg http://forums.pelicanparts.com/uploa...1749658039.jpg http://forums.pelicanparts.com/uploa...1749658039.jpg http://forums.pelicanparts.com/uploa...1749658039.jpg |
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http://forums.pelicanparts.com/uploa...1749696858.jpg http://forums.pelicanparts.com/uploa...1749696858.jpg http://forums.pelicanparts.com/uploa...1749696858.jpg The engine that made powered flight possible: the Wright 1903 Flyer engine. Hand built by machinist Charlie Taylor, it weighed 180 pounds and produced a scant 12 hp. But it was enough for the first heavier than air aircraft to achieve powered flight and put Orville and Wilbur Wright in the history books. http://forums.pelicanparts.com/uploa...1749696858.jpg http://forums.pelicanparts.com/uploa...1749696858.jpg |
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One for Byron ....
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